हिंदी

Draw the Electrical Symbols of the Following Components and State Its Use: Ammeter. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Draw the electrical symbols of the following components and state its use:

Ammeter.

उत्तर

Ammeter:

Use: To measure the current in the circuit.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2016-2017 (March)

APPEARS IN

संबंधित प्रश्न

What Makes an Electric Current Flow in a Wire?


In the circuit shown below, the voltmeter reads 10 V. 

 

(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?

 


For a heater rated at 4 kW and 220 V, calculate:

(a) the current,
(b) the resistance of the heater,
(c) the energy consumed in 2 hours, and
(d) the cost if 1 kWh is priced at Rs 4.60.


Match the pairs.

‘A’ Group  ‘B’ Group 
1. Free electrons a. V/R 
2. Current b. Increases the resistance in the circuit 
3. Resistivity c. Weakly attached 
4. Resistances in series d. VA/LI

What do you mean by conductance of a conductor?

Many electrical appliances and circuits are earthed grounded. What is the reason for this?

What type of electricity is supplied to us at houses?

Define the following:

Semiconductors


Find the effective resistance in the following circuit diagrams (Fig.):


Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
connected (a) In series, and ( b) In para 1le l as shown in fig. . What is the
current flowing through the cir cu it in each_ case?


What is meant by the term 'electromotive force' of a cell?

Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. Calculate :

The total current taken from the supply


A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:

The energy dissipated in the bulb in 10 minutes.


Choose the correct option from given alternative: 
At the time of short circuit, the electric current in the circuit :


Define electric current and give its unit.


A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross section of the filament in 16 seconds would be roughly


The flow of electric charge per unit time is called potential difference.


Match the following:

1. 1 mA a. series
2. 1 pA b. ohmmeter
3. Ammeter  c. 10-6 ampere
4. Electrical resistivity d. 10-3 ampere

What is the SI unit for the current?


A charge of 400C flows through a conductor for 13 minutes and 20 seconds. Find the magnitude of the current flowing through the conductor.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×